Protective casing for portable handheld electronic device



FIG. 1 is a front perspective view of the protective casing for portable handheld electronic device;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a left elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a perspective view of thereof in an open state.

The electronic device shown in broken lines forms no part of the claimed design.

The broken lines in the drawings depict boundary of the claimed design and forming no part thereof. 

CLAIM The ornamental design for a protective casing for portable handheld electronic device, as shown and described. 